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Contents
# frozen_string_literal: true
module GraphQL
class Schema
class Validator
# Use this to assert that string values match (or don't match) the given RegExp.
#
# @example requiring input to match a pattern
#
# argument :handle, String, required: true,
# validates: { format: { with: /\A[a-z0-9_]+\Z/ } }
#
# @example reject inputs that match a pattern
#
# argument :word_that_doesnt_begin_with_a_vowel, String, required: true,
# validates: { format: { without: /\A[aeiou]/ } }
#
# # It's pretty hard to come up with a legitimate use case for `without:`
#
class FormatValidator < Validator
if !String.method_defined?(:match?)
using GraphQL::StringMatchBackport
end
# @param with [RegExp, nil]
# @param without [Regexp, nil]
# @param message [String]
def initialize(
with: nil,
without: nil,
message: "%{validated} is invalid",
**default_options
)
@with_pattern = with
@without_pattern = without
@message = message
super(**default_options)
end
def validate(_object, _context, value)
if (@with_pattern && !value.match?(@with_pattern)) ||
(@without_pattern && value.match?(@without_pattern))
@message
end
end
end
end
end
end
Version data entries
19 entries across 19 versions & 1 rubygems